Publication
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Descriptions of Earthworms Article
Notes from the Leyden Museum, 13(2), 77-84.January 1891
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A new genus of Calandrinae Article
Notes from the Leyden Museum, 13(3), 147-150.January 1891
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The Birds of Billiton Article
Notes from the Leyden Museum, 13(2), 121-130.January 1891
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On the Ceylon Cetoniidae collected by J. Z. Kannegieter Article
Notes from the Leyden Museum, 13(3), 181-187.January 1891
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A new species of Unio Article
Notes from the Leyden Museum, 13(2), 113-114.January 1891
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Some additions to the Mammalian-fauna of Billiton Article
Notes from the Leyden Museum, 13(3), 207-209.January 1891
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Description d’un Curculionide nouveau Article
Notes from the Leyden Museum, 13(2), 145-146.January 1891
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Contributions to the knowledge of the family BrenthidÆ Article
Notes from the Leyden Museum, 13(3), 161-166.January 1891